Why can’t I use nodal slaving to build a rigid diaphragm?
It is not accurate to use nodal slaving to try to create a diaphragm. While the nodal rotations can be slaved and the correct diaphragm behavior maintained, slaving the in-plane translational degrees of freedom will produce incorrect diaphragm behavior. A diaphragm that has a load applied to a location other than the center of stiffness should experience both a translation and a rotation. A diaphragm that is created by slaving in-plane translations will not rotate under such a loading, it will only translate, and be much stiffer than it should be.
Related Questions
- While using the "Master Slave" command to define a rigid diaphragm in a framed multi-storeyed structure, what criteria should one adopt to determine the "Master node"?
- Can you apply a torsional load on a specific point upon a rigid or flexible diaphragm?
- Why can’t I use nodal slaving to build a rigid diaphragm?
